<%@ page import="cn.school.listener.MySessionSet" %><%--
  Created by IntelliJ IDEA.
  User: oldliu
  Date: 2022-02-25
  Time: 16:58
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
  <h1>当前在线的用户有:</h1>
<%
    out.print(MySessionSet.onlines);
%>
</body>
</html>
